Dhaka, April 17 -- U.S. forces completed their withdrawal from Qasrak air base on Thursday when a final convoy of soldiers and equipment departed the site in Syria's Hasakah province, officials for both sides said.

The Syrian army has now taken full control of most military sites in the country where the U.S. military was once deployed.

Syria's foreign ministry said in a statement that "the Syrian state's restoration of sovereignty over areas that were outside its control, including the northeast and border regions, is the result of the Syrian government's continuous efforts to unify the country within the framework of a single state."

It said that the U.S. withdrawal came as a result of the successful implementation of a deal between ...